A-A-224C
3. SALIENT CHARACTERISTICS
3.1 Design. The construction of the hinges covered by this commercial item description shall be in accordance with ANSI/BHMA A156.20. The hinges shall be tee type with non-removable pins. Hinges supplied in accordance with this commercial item description shall be in accordance with ANSI/BHMA A156.20 identifying numbers A82222 and A82221 in the sizes shown. Grade 1 and 2. Hinges listed are the most often procured by the Government; other materials, grades, sizes, and finishes may be specified in the procurement document. Hinges shall be of the types, grades, and sizes shoen.
3.2 Size. Hinges shall be supplied in the size specified. Size shall be determined by the overall length of the hinge closed. Length closed may be measured as overall closed length or from the center of the hinge pin to the opposite end.
3.3 Finish. Unless otherwise specified, the surface of the hinge shall be electroplated zinc coated in accordance with finish code 603 of ANSI/BHMA A156.18. The finish shall be tested in accordance with ANSI/BHMA A156.20 or A156.18, as applicable. When specified, the hinges shall be hot dipped galvanized in accordance with ASTM A153.
3.4 Pins. The brass hinge pin shall be spun, riveted, or otherwise made fast (non-removable).
3.5 Hardware. All fasteners required for attachment, as specified in ANSI/BHMA A156.20, shall be included with the hinges. Hardware furnished shall be of suitable size and shall be compatible with the finish of the hinge.
3.6 Workmanship. The hinges furnished shall be free from sharp edges, cracks, burrs and imperfections which may impair durability or serviceability.
3.7 Regulatory requirements. The offeror/contractor is encouraged to use recovered materials in accordance with Public Law 94-580 (as amended) to the maximum extent practicable.
3.8 Metric products. Products manufactured to metric dimensions will be considered on an equal basis with those manufactured using inch-pound units, provided they fall within tolerances specified using conversion tables contained in the latest revision of FED-STD-376, and all other requirements of this commercial item description are met.
3.9 Measurement system. The values stated in inch-pound units are to be regarded as the standard. The metric values stated in parentheses are for information purposes only.
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